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Longines 503
Ligne: 12.5'''
Jewels: 24
Lift Angle: 49°
Power Reserve: 46 hrs
Frequency: 19800 vph
Type: Automatic
Period used: 1956-1963
Diameter: 28.5 mm
Height: 5.55 mm
Hands: 1.50 x 0.80 x 0.18 mm
The Longines 503 watch movement, belonging to the 470, 490, and 500 families, was produced from 1956 to 1963, with a total production of 1,075,000 units. It is a manually-wound movement that is officially certified as a chronometer. It features a sweep second hand and incorporates automatic winding functionality. Additionally, it is equipped with Incabloc shock protection.
The Longines 503 features the following functions:
- Automatic Winding
- Incabloc Shock Protection
- Sweep Seconds
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|---|---|
| 4565 | Ordinary/None | Buy staff |
| 4565 | Incabloc | Buy staff |
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.20 x 0.100 x 340 x 10.0 mm | GR2922X | Auto | Buy mainspring |
Incabloc Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) | |
|---|---|---|---|
| See More |
KIF Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
|---|
Documents
Parts Listing
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